In my grow room i have a small hole that a computer fan can fit in, but i was wondering how i would wire it up, like from a battery or the mains if thats possible, as you can tell i have a limited knowledge of electricals so any help much appreciated thanks.
You can wire it up to a 12v ac/dc adapter. You can find them at radioshack ask for a 12v 1.5 Amp ac adapter then just splice your negative and positive wires into the adapter. If you still need help i post a pic up when i get back to my desktop, but its pretty self explainitory.